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Propylene glycol USP grade applications

October 27,2023

Propylene glycol(PG)   is a versatile compound used in a variety of industries, including the biomedical industry. PG is a transparent, colorless, odorless, sweet-tasting viscous liquid. It is a member of the alcohol family and is widely used as a solvent, humectant, preservative and tackifier.

In this article, we will explore the various uses of propylene glycol in the biomedical industry.

Pharmaceutical industry

The pharmaceutical industry is one of the largest consumers of propylene glycol. PG is used to formulate oral, topical and injectable medications. PG acts as a solvent, co-solvent and stabilizer in a variety of formulations. It is also used as a diluent for injectable drugs to reduce the viscosity of the formulation and improve drug delivery. PG is considered safe for use in pharmaceutical formulations and has received U.S.


Cosmetics industry

PG is widely used in the cosmetics industry as a humectant, solvent and thickener. It is added to various skin care and personal care products to improve their texture and enhance their moisturizing properties. PG helps retain moisture by preventing water from evaporating from the skin and hair. PG is also used as a delivery agent for a variety of active ingredients, including flavors, vitamins, and plant extracts.

Veterinary medicine

PG is used in veterinary medicine as a solvent, humectant and preservative. It is added to topical ointments and creams to improve their spreadability and moisturizing properties. PG is also used as a carrier for injectable drugs and as a preservative for vaccines.

Medical equipment

PG is used in the production of medical devices, including catheters and IV tubing. It is added to these devices to increase their flexibility, reduce their friction and prevent them from sticking to tissue. PG is also used as a lubricant in the production of prosthetic devices and dental impressions.

Laboratory applications

PG is used as a solvent, stabilizer and preservative in laboratory applications. It is used to produce buffers, reagents and analytical test standards. PG is also used as a cryoprotectant to protect biological samples from damage during freezing and thawing.